Yamaha no start diagnosis

[@Everclearish]

Ive got a 2016 Kodiak 700 EPS. It had hard starts. I changed relays etc. Put a new starter on and it fixed the hard start i was having. Same problem developed again. I found a better, more expensive starter , put it on and fixed it. Now a year later same problem all over again. Hard starts. Seems like the starter doesn't have enough cranking power to turn the motor over. I even bought a new battery last time and its still holding a good charge also. The starters ive bought were all made in China....couldnt find one that wasnt. Do you think it could be a problem with the engine? Crank position etc?

[@MelloFAB_270]

How is the cranking speed when you replace the starters? Is it always a normal fast crank till the starter fails again?

[@mch91old]

Thank you again for the reply. I don't have power coming from the ecm when I turn the key on. I have hooked my test light to the hot side of the battery and to the lower right slot in the relay connector. No power. Do you think the ecm is bad??

[@MelloFAB_270]

The pcm doesn’t power it it grounds it. The test light should only light up very briefly when turning key on.

[@mch91old]

It does not light up at all when i turn the key on. @@MelloFAB_270

[@chipsmith3006]

How can I energize that center pin using only a test light? I put the light on positive and center pin, turn key on and nothing happens

[@MelloFAB_270]

Wouldn’t rely on a test light use a jumper wire

[@jaimeestrada5637]

I have a grizzly no power to fuel pump I checked the relay and it has power . If i hold down the crank bottom it will run and stay on as soon as I let go it shuts off!!

[@MelloFAB_270]

So the fuel pump will run and stay running as long as you’ve got it in the crank position? Assuming your engine is running at that point?

[@jaimeestrada5637]

@@MelloFAB_270 yes if I keep pressing down it will stay on as soon as I release it dies immediately.. I don’t hear the fuel pump prime at all tho. I also have a green screen display .

[@darylcox5299]

I have a 2009 Yamaha 700 - with same symptoms- no power to fuel pump (pump does work - applied isolated power to it). Recently replaced wiring harness, relay (relay gets correct voltage and ground)and the fuse is good - any ideas?

[@MelloFAB_270]

If your relay has two powers like in the video and a ground then the relay should close and send power to the fuel pump. Have you ohmed from the fuel pump relay connector to the fuel pump?

[@darylcox5299]

@@MelloFAB_270 yes - is there more than one relay for the fuel pump system?

[@darylcox5299]

I unhooked the power at the fuel pump - turned the key on and relay is not sending voltage -

[@MelloFAB_270]

@@darylcox5299 if you have continuity from fuel pump relay to fuel pump and your fuel pump ground is good then the fuel pump has to work when power is applied to that pin. Unless pump is bad. If your on Facebook then pm me.

[@MelloFAB_270]

@@darylcox5299 if the relay is not sending voltage in the wire from the relay to the pump is good they needed the relay is not getting grounded by the ECM, it does not have the two powers needed to work, or the relay is bad.

[@jerimahjohnson8698]

I'm having issues with 2019 Kodiak 450. Cranks no start...has new battery and fuel in it. The fuses next to the battery and relay all look good. What am I missing sir??? Thanks

[@MelloFAB_270]

Can you hear the fuel pump run when you turn the key on?

[@jerimahjohnson8698]

@@MelloFAB_270 no sir

[@MelloFAB_270]

@@jerimahjohnson8698 if your on Facebook send me a pm.

[@dannib69]

I have a yamaha fz1n 2007 code 43 but only when bike gets hot I've put a new battery and still did the same won't start 43 shows but if I let it cool a little and put a jump start on it it fires up really lost

[@MelloFAB_270]

So it won’t crank when hot?

[@dannib69]

It still cranks just won't start

[@MelloFAB_270]

When it hot it still cranks but won’t start? Does it crank at normal speed or does it crank slow, sluggish, or erratic.

[@dannib69]

@@MelloFAB_270 cranks as normal tested the pump off bike works fine and put easy start in cyclinder and it fires just no power to fuel pump

[@giovanipalacios8538]

Brother, the two relays that are on the side are blue, what function do they have, can you help me?

[@MelloFAB_270]

If you have a Viking someone installed sled cold weather relays.

[@OvercomerforcCHRIST]

I have a 2011 rhino 700, it will crank and crank and won’t hit a bit , possible starter relay?

[@MelloFAB_270]

Is the fuel pump running?

[@OvercomerforcCHRIST]

Best that I can tell mine is fuel injection and I can smell gass after I crank it for several seconds

[@MelloFAB_270]

@@OvercomerforcCHRIST since yours is a 700 rhino it is fuel injected. You should hear the fuel pump run when you turn the key on. Do you?

[@OvercomerforcCHRIST]

@@MelloFAB_270 I’m going to test that today I don’t know if I heard it on not I just assumed it was working if I smelled gas when trying to start it…. Ty … mike

[@bryanleyda6370]

Are you still offering help on no start issues?

[@MelloFAB_270]

Yes absolutely

[@khaledwohaib9110]

My yxz turns but no gear numbers on guage dif 4x4 wont go off and temp all fualts are on pls help

[@khaledwohaib9110]

Fuel pump not working gear numbers on guage no numbers fualt light on 4x4 wont go off no spark from plugs so it turns but no start yxz2016

[@MelloFAB_270]

Will it crank? Does fuel pump run when you turn key on?

[@thomascraven3737]

Our Bruin turns but ill not complete the stars

[@thomascraven3737]

Start

[@mch91old]

I have the same problem. Where is the ecm located and how do I test it???

[@MelloFAB_270]

ECM is in front of battery. You test the relay socket to see if you have your two powers and the appropriate ground for relay to close and send power to fuel pump.

[@A-mechanics-review-4U]

kinda ,should, are not good words to inspire confidence when teaching.....

[@MelloFAB_270]

I used should properly in the video when describing the powers and the ground. You should have those signals in those locations but you might not. I also stated what it means when you don’t have those signals and I didn’t use kinda when referring to the diagnostics in the video.

[@kevinhake4798]

On the ground side somehow I'm getting power not a ground if I put a test light to the negative of the battery and put it on the blue wire with the red line on it grounded to the battery the bomb will illuminate lightly and then it will start

[@MelloFAB_270]

Are you on Facebook?

[@kevinhake4798]

No I'm not

[@MelloFAB_270]

Trying to figure out a better way to communicate on your issue?

[@kevinhake4798]

What a telephone number be better

[@MelloFAB_270]

Yes.

[@Johnrider1234]

My vk will run while turning it over

[@MelloFAB_270]

Will run while turning it over?